The central concept of the growth mindset is the idea that we can improve over time, even with regards to our intellectual abilities. In other words, we can become smarter with practice. What a beautiful message to communicate to our kids! It doesn't matter how gifted you are (or not) at birth, because our thoughts and behaviors can shape our brains. Whether we are at school, at home, or anywhere else, our brains get stronger and more capable if we guide them that way.
Hey, if it worked for Albert Einstein, it can work for us! Here's a video from a NOVA episode that discusses Einstein's brain in addition to other related ideas. I started showing it to my students last year, and they have loved it.